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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>螺旋增強波紋管供貨費用,波紋管</p><p><span>***更新：</span>2020-12-10 05:14:28</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="hbdvx3u" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海卓帕真空技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>范裕軍</p><p><span>郵箱: </span>469585075@qq.com</p><p><span>電話: </span>17317798775</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.zapavac.cn</p><p><span>手機: </span>021-52999935</p><p><span>地址: </span>曹楊路1017號一幢三樓3193室</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="qk8ubi2" class="page-proshow02"><p class="title">詳細說明</p><div id="x87n7bx" class="box"><p><p style="text-indent:25px">波紋管截止閥的密封試驗：試驗波紋管截止閥通常是在常溫下以公稱壓力PN進行的，一般是在1.5倍PN壓力下進行的。波紋管截止閥由于有兩個密封副，故需進行雙向密封試驗。試驗時，先將波紋管截止閥的閥門開啟，把通道一端封堵住，壓力從另一端引入，待壓力升高到規(guī)定值時將閥門關(guān)閉，然后將封堵端的壓力逐漸卸去，并進行檢查。另一端也重復(fù)上述試驗。波紋管截止閥的另一種試驗方法是在體腔內(nèi)保持試驗壓力，從通道兩端同時檢查閥門的雙密封性，螺旋增強波紋管供貨費用。波紋管不會產(chǎn)生泄漏，也適于輸送有害，螺旋增強波紋管供貨費用，螺旋增強波紋管供貨費用，易燃易爆和貴重液體及含有顆粒和漿狀物料，但流量較小，排壓較低。螺旋增強波紋管供貨費用</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="螺旋增強波紋管供貨費用,波紋管" src="https://tyunfile.71360.com/UploadFile/shzpzkgs/637417393587350782/8725235.png"></div><p style="text-indent:25px">上海卓帕真空技術(shù)有限公司**介紹，鋼帶波紋管材的安裝注意事項：管材和管材的連接面必須干燥、清潔、無油。切斷管材時，端面必須與管材軸線垂直。管材切斷一般使用管子切割或管子刀，必要時可以使用尖銳的鋸，但管材切斷的截面應(yīng)該去除邊緣和刺。電焊管材與管材的融合部位不要受到濕氣。熱器可以打開電源，在達到工作溫度綠色指示燈亮后開始操作。加熱時，不旋轉(zhuǎn)地把管子的端部導(dǎo)入加熱罩，插入標識的深度，同時，不旋轉(zhuǎn)地把管子推在加熱頭上，達到了規(guī)定的標識。加熱時間如熔敷工具使用說明書所示。螺旋增強波紋管供貨費用波紋管閘閥只許介質(zhì)單向流動，安裝時有方向性。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="螺旋增強波紋管供貨費用,波紋管" src="https://tyunfile.71360.com/UploadFile/shzpzkgs/637417393281393726/396968.png"></div><p style="text-indent:25px">預(yù)應(yīng)力金屬波紋管又稱金屬波紋管、金屬螺旋管、混凝土填充管、地腳螺栓用波紋管。金屬螺旋管采用較好的鋼帶經(jīng)軋波、卷管成形、咬口、切斷等工序制成圓形和扁形波紋管。由于現(xiàn)在建筑上越來越多地采用預(yù)應(yīng)力混凝土結(jié)構(gòu)，而預(yù)應(yīng)力波紋管是預(yù)應(yīng)力混凝土結(jié)構(gòu)所必須的。用途：產(chǎn)品應(yīng)用于橋梁、多層廠房、停車場、寫字樓、公寓大樓、體育館等大型建筑物。上海卓帕真空技術(shù)有限公司座落于浙江溫州永嘉甌北，是一家集科研，生產(chǎn)及銷售鍛鋼閥門的專業(yè)生產(chǎn)產(chǎn)家。公司生產(chǎn)的產(chǎn)品普遍用于石油、化工、冶金、機械、電力、供水等行業(yè)，深受用戶依賴和好評，歡迎大家前來選購產(chǎn)品。</p><p style="text-indent:25px">波紋管截止閥在銘牌注明的彈簧工作壓力級范圍內(nèi)，通過旋轉(zhuǎn)調(diào)整螺桿改變彈簧壓縮量，即可對開啟壓力進行調(diào)節(jié)。在旋轉(zhuǎn)調(diào)整螺桿之前，應(yīng)使閥進口壓力降低到開啟壓力的90%以下，以防止旋轉(zhuǎn)調(diào)整螺桿時閥瓣被帶動旋轉(zhuǎn)，以致?lián)p傷密封面。為保證開啟壓力值準確，應(yīng)使調(diào)整時的介質(zhì)條件，如介質(zhì)種類、溫度等盡可能接近實際運行條件。介質(zhì)種類改變，特別是當介質(zhì)聚積態(tài)不同時（例如從液相變?yōu)闅庀啵_啟壓力常有所變化。工作溫度升高時，開啟壓力一般有所降低。故在常溫下調(diào)整而用于高溫時，常溫下的整定壓力值應(yīng)略高于要求的開啟壓力值。鋼帶波紋管在管道填埋地鋪設(shè)時，填埋地部門的接口即使少也要細。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="螺旋增強波紋管供貨費用,波紋管" src="https://tyunfile.71360.com/UploadFile/shzpzkgs/637417393311794114/5883287.png"></div><p style="text-indent:25px">波紋管密封截止閥結(jié)構(gòu)特點是什么？上海卓帕真空技術(shù)有限公司**介紹，波紋管密封截止閥結(jié)構(gòu)特點是：雙重的密封設(shè)計（波紋管+填料）若波紋管失效，閥桿填料也會避免；結(jié)構(gòu)合理、密封可靠、性能優(yōu)良、造型美觀；沒有流體損失，降低能源損失，提高工廠設(shè)備安全；密封面堆焊Co基硬質(zhì)合金、耐磨、耐腐、抗摩擦性能好、使用壽命長，減少維修次數(shù)，降低經(jīng)營成本；堅固耐用的波紋管密封設(shè)計，保證閥桿的零泄漏，提供無需維護的條件；截止閥閥桿調(diào)質(zhì)及表面氮化處理，有良好的抗腐和抗摩擦性能。想要了解更多波紋管截止閥詳細內(nèi)容，歡迎在線咨詢上海卓帕真空技術(shù)有限公司客服人員。銷售雙壁波紋管價格</p><p style="text-indent:25px">波紋管閘閥分為三類：直通式、直角式及直流式斜截止閥。螺旋增強波紋管供貨費用</p><p style="text-indent:25px">上海卓帕真空技術(shù)有限公司**介紹，波紋管閘閥維護注意事項：波紋管閘閥的手輪、手柄操作的紋管截止閥可安裝在管道的任何位置上。手輪、手柄及偉動機構(gòu)，不允許作起吊用。介質(zhì)的流向應(yīng)與閥體所示箭頭方向一致。波紋管閘閥也叫截門，是使用比較普遍的一種閥門，它之所以廣受歡迎，是由于開閉過程中密封面之間摩擦力小，比較耐用，開啟高度不大，制造容易，維修方便，不僅適用于中低壓，而且適用于高壓。它的閉合原理是，依靠閥杠壓力，使閥瓣密封面與閥座密封面緊密貼合，阻止介質(zhì)流通。螺旋增強波紋管供貨費用</p><p style="text-indent:25px">上海卓帕真空技術(shù)有限公司總部位于曹楊路1017號一幢三樓3193室，是一家真空技術(shù)領(lǐng)域內(nèi)的技術(shù)開發(fā)、技術(shù)咨詢、技術(shù)服務(wù)、技術(shù)轉(zhuǎn)讓、銷售、真空設(shè)備、真空泵、機電設(shè)備、機械設(shè)備及配件、自動化設(shè)備、儀器儀表、橡膠制品、五金交電、金屬材料、化工原料（除危險化學(xué)品、監(jiān)控化學(xué)品、民用物品、煙花爆竹、易制毒化學(xué)品），從事貨物及技術(shù)的進出口業(yè)務(wù)。的公司。公司自創(chuàng)立以來，投身于真空泵，分子泵，羅茨泵，凍干泵，是機械及行業(yè)設(shè)備的主力軍。卓帕真空始終以本分踏實的精神和必勝的信念，影響并帶動團隊取得成功。卓帕真空始終關(guān)注自身，在風(fēng)云變化的時代，對自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使卓帕真空在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2341781.html</p></div></div></div></div></div><div id="vkhtqhj" class="page-right twoColRt"><div id="fuwtaw8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="kyah8nu" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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